Hoisting machine



(No Model.) 2 sheets-sheet 1.Y

s. 11. MORSE E o. 1115011. HOISTIMG MACHINE. 119.291.217. Patentedmn. 1,1884.

/lIll/l V2' sheets-sheet 2.

(N0 Model.)

11. MORSE su @.TYSON.

- ILUI'STIlVGr MACHINE. 110.291,21?.r

Patented Jan. 1, 1884.

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' f themen STATT-is PATENT @Tricia SITEPITIEN A. MORSE AND vCHARLES TYSON, OF PHILADELPHIA, PA.

HOISTING- MACHINE.

SPECIFICATION forming part of Letters Patent No. 291,217, dated January 1, 1884.

Application filed October 1l, 1883. (No model.)

.To aZZ whom t may concern..-

Y Be itknown that we, STEPHEN A. Monsn and CHARLES TYsoN,both of Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented an Improvement in Hoisting- Machines, of which the following isa specil cation.

' Our invention has reference to hoisting-machines in general, but more particularly to improvements upon Letters Patent granted to S. A'. Morse (one of the present applicants) on .I uly' 18, 1882, and numbered 261,377; andit consists Vin certain constructions having reference tothe shifting of the driving-belts, brake mechanism devices, by which the machine may be made right or left handed, as desired, and in 'many details of construction, all of which arefully set forth in the following specication and shown 'in the accompanying drawings, which form part thereof.

The object of our invention is to simplify the construction, increase the strengtlnand improve the operativeness of a machine of this class, and at the same time render it capable of being made right or left handed.

Inthe drawings, Figure I is a front elevation of our improved hoisting-machine. Fig. Zfis a crossseetion of same on line a: x of Fig. l. Fig. 3 is a cross-section of same on line y y of Fig. I. Fig. 4 is an elevation of one of the shifting-arms, vand shows its method of at' tachment to the shifting-bars. Fig. 5 isaperspective view of one ofthe clamps used to secure said shiftingarm to said shifting-bar. Fig.` l6 is 'a sectional elevation on line c e of Fig. 2. Fig.',7 is a perspective view of the brake mechanism detached from the machine.

. Fig'S is a plan view of same, showing its con- "nectionjwith the worm-wheel box or case.` Fig'. 9 is a sectional elevation of the brakecam, and Fig. 10 is a plan view of one of the buffers secured to the reciprocating shiftingbars.V

VA is the worm-wheel case, through which the shaft B, carrying the winding-drum E, passes, and is journaled therein. Secured to saidl shaft B within the case A is the worm- Meshing with said worm-wheel is the worm B2, which'is inclosed within the cy lind'rical part Af iof the case' A, and is' secured to V:thedriving-shaft C, journaled in the caps on heads A2 in the usual way. Secured to said shaft C is the brake-wheel M and also the driving-pulley C3, and upon each sideof said driving-pulley are loosely journaled the idler@ pulleys C and CL', around which the drivingbelts L2 pass. A

\ ALoosely journaled on the shaft B, preferably on the end opposite to which the drumE is secured, is the frame D2, secured to which is the shifting-pulley D, whichmay be rotated by a chain or rope, D. This frame and its pul Yley are retained upon the shaft B by a washer, G, secured to said shaft by a screw, y, which washer works against the outer bearing, D", of the frame D2. The rim of the wheel or pulley D is provided withtwo pins or rollers, arranged diagonally opposite, andl adapted to work alternately in their respective slots t' in the plates I I, which reciprocate their respective shifting-bars K K, to which they are secured by bolts I3, the said shifting bars K being supported and guided in guideways 011 the bracket J, which latter is secured to the case A. The plates I I are further provided with lugs I2, which are adapted to be alternately received in the circular slot or groove H on the pulley or wheel D upon the pin or stud I, leaving the slot t' of the other of said plates I as shown in Fig. 6, Vwhich limits the throw of the shifting-bars K/respectively in opposite directions, and the buffers K", arranged respectively on opposite ends of the two bars K, limit the throw of said bars in the opposite directions. In other words, the slot H limits the throw of the belts onto the idler-pulleys C C, and the buffers limit the throw of said bolts onto driving-pulley C3. These buffers may be made in any'manner desired; but `we 'prefer the construction shown, (see Fig'. 10,) in which the plate k3 fits over the bars K and carries a rubber cushion, 7a2, and is secured to the said bars by bolts k', which pass through holes k in same. holes k, to enable the buffer to be set forward or back, to vary the throw of the drivingbelts, Vso that various widths of belts may be used with the same machine. The shifting- There are several of saidV ICO the shifting-bars K. In practice we prefer to secure them by two clamping-plates, Z, which encircle the said bars K, and provided willi lugs Z2, the clamping` action being effected by a bolt, 7, as shown, for by this construction it is unnecessary to drill holes in tl1ebarsK.and the saine elampingplatcs, I, may be used for either of t-he arms L, and only one pattern is required, the left and right plates being identical. The belts L'l pass through said loop L. and are shifted on or ot'f the driving-pulley C by the same.

Mis the brake-shoe, and is adapted to create a friction on thepulley M, andis supported and carried by U-shaped frame N, having long arms N3, by which said frame is pivoted to the ease A by a pin, yn, passing through a hole, A This shoe M is pivoted to frame X by auniversaljoint, consisting ofa stud, m,which passes through said frame, a spring, G11/,which eneirclcs said stud, and a nut, mwhichscrews upon said stud and puts the spring under teusion. The ends of the arms .\"of frame Ninay be provided with outward]y-extending projections or lugs n. This brake, as far as described,would at all times rest upon the wheel M but would not give the requisite friction nor relieve the said wheel, hence it is necessary to provide means to increase the friction and also to remove the action of thebrake upon starting the elevator. To accomplish this end we provide the following levers and cam: A Y-shaped lever, O, is provided with a long arm, O2, to which the adjustable weight Oiis secured, and with side arms, Ot, provided with bearings O. To one ofthese arms O is bolted an arm, I), by bolts S, and the said arm may be adjusted by slot p. The free end of this arm P is provided with a wheel, It, and at or near its middle it is provided with a slot or aperture, p', and lugs I, extending` out over cach side and above aperture p, and through which are screw-holes for adj listing-screws Q. This frame as a whole is now supported upon the journals N, projecting out froln frame N Aon each side and above the brake-shoe, the

said journals fitting into the bearings O, and the screw Q, presses down upon the lug a of one of the legs Nl offrame N, as shown in Figs. 7 and 8. The roller B restsnormally, or when the machine is at rest, in the recess D, between the cam projections of the brake-cam D4, as shown in Fig. 9, and this brake-cam is secured to or forms part of the inner journal of the frame D2. The movement ofthe brakecam D* either way removes the brake-shoe M.

we provide an improved means for accomplishing this result, as follows: The end of the shaft B located within the frame DZ is, screwthreaded, and upon sait. screw we secure two clamps, F F2, which are clamped by bolts f, and are preferablyprovided with clutch-lugs j", the said lugs being arranged to face each other. Loose] y working on the screw is a nut, F, kept from rotating by a slot, F, working on a guide, d', on the frame l)', and provided on cach side with clutch-lugsj", to correspond with lugs f on rigid nuts F F". Now, as the shaft B rotates, the frame I)ll and nutF being` stationary, the latter is moved along in either direction, according to whether the elevator is running up or down, and under normal conditions would never come in contact with nuts F F2; but if the regular stop becomes deranged, then the nut F clutches with either nut F or nut FE and rotates the wheel I) and frame D'1 and stops the elevator. *ly adjusting the nuts F and FL nearer or farther apart, the time of action may be varied to suit the height of building in which the elevator isloeated. This adjustment is easily ascertainet'l, as a revolution of shaft B and its drum E will raise the elevator a given distance, and a certain number of threads between nuts F F'l will correspond to an equivalent height. The teeth f prevent the nuts from binding or locking with each other.

The operation is as follows, the apparatus being in the position shown in Fig. l, in which the pins I I are both in the slotsz i ofthe plates I I, and hence hold both the shiftingbars from motion in either direction, so that both driving-belts will be on their respective idler-pulleys, C (J2: Sow, if it is desired to run up the elevator, the chain 1) is pulled in one direction, the result of which is to turn the wheel D, the groove 1I passing over the lug I on one ofthe plates I, holding it rigidly from reciprocating motion, and one of the pins I enters the slot i of the other plate and thrusts it forward, shifting one of the drivingbelts onto the drive-pulley C through the agency of its bar K and belt-shifting arm. This same action rotates the cam D, the projection Di depressing the lever I), raising the weight O, and removing the shoe M from the brake-wheel M. New, the rotation of the shaft @rotates the worm B2, and it in turn rotates the worm-wheel B', to which the shaft B is secured, and this in turn revolves the winding-drum, which winds up or gives out the lifting ropes or cables. Any given amount of friction may be given by adjustment of the weight O:s and the screw Q, which latter is used specifically to vary the contact of the shoe M with the wheel M, for by screwing it down the said shoe may be removed entirely from the brake-wheel at a time when the machine is at rest and the greatest pressure should be exerted. If the wheel D is rotated in the opposite direction, then the opposite belt is shifted and the brake removed, as before; but now the machine runs in the opposite direction and lowers the elevator. If

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it isdesired to-change the machinefrom-a left- Y hand to a right-hand machine, or vice versa,

the usual heads to the cylinder-case A are removed and exchangedand the shaft C reversed. Then the pina of the brake device is removed andthe brake mechanism moved around andV secured to the corresponding hole, A3, on the other'side of the case A, Vand the arm P is removed and bolted tothe other arm, O4, soas to keep 'it in contactwith the brake-cam Dt, and the screw Q is changed again to the hole I on the inside of the arm P. The bars K are then turned end for end, and the plates I I are preferably bolted to the opposite bars to what they were formerly bolted, as these plates I I can not be moved; or, if desired, the bars K K may be turned end for end, and also exchanged for each other., Then the same old bolt-holes-will suffice, and the machine is converted into a left-hand machine without altering any vparts thereof. While we prefer the construction shown,we do not limit ourselves thereto, as our invention may be modified in various ways without departing therefrom.

We areaware of the patent to Glem, April S, 187 9, N o. 214,102, and claim nothing therein set forth or claimed. `Havingnow described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. The combination of a shifting-wheel, a

brake-cam secured thereto, mechanism actuated by said Awheel to actuate the drivingbelts, and gravity-'brake mechanism.arrangedA to be thrown out of action upon rotating said shiftingwheel in either direction, and into action when said Fwheel is in its normal position, or between said motions, substantially as and for the purpose specified. y Y

2. The combination of a brake cam and brake with the driving-shaft of a hoisting-machine, and means to vary the position of the brake-shoe with reference to its actuatinglever, substantially as set forth, to regulate or vary the time of the application of said brake, substantially as and for the purpose specified. 3. The combination of a brake cam and brake with the driving-shaft of a hoisting-machine, a brake-wheel upon said driving-shaft,

. a driving-wheel, and two idler-wheels, beltshifters, and shifting mechanism to actuate said belt-Shifters, and means to vary the position of the brake-shoe with reference to its actuating-lever, substantially as set forth, to regulate or vary the time of the application of said brake to said brake-wheel, substantially as andv for the purpose speeied.

4. The combination of the casing A, frame N N2, pivot a', brake-shoe M', frame O, having arm O2, weight O3, arm P, screw Q, and cam mechanism to vibiate said arm' I), substantially as and for the purpose specified.

5. The combination ofthe casing A, having apertures or holes0 A3 on each end thereof, frame N, having two legs or arms, N2, arranged to straddle said ease A, pivot a', brake-shoe M, frame O, pivoted to frameN, havin arm.

g O2, and arms O", also arranged to straddlesaid case A, weight Oi, arm P,'screw Q., and cam mechanism to vibrate said arln l), whereby said brake mechanism may be made right or left handed on the said case A, substantially to, withinwhich the said pins work to movesaid bars, and suitable devices, substantiallyV as set forth, to hold one of said bars stationarywhile the other is being moved, orvice versa, substantially as and for the purposev specified.

7. A belt-shifting device for hoisting-machines, which consists of a shifting-wheel pro- .vided with two pins, arranged diametrically opposite to cach other, and a circumferential.

slot or groove arranged between said pins, incombination with shifting-bars aud slotted plates secured thereto, within which the said pins work to move said'bars, and also lugs or projections which t into the,circumferential'` groove, and thereby prevent the said plates from moving, said circumferential groove and one of said pins on said shifting-wheel acting y respectively uponthe separate shifting-bars. l

. and their plates at the same time, whereby one V is held stationary while the other isl beingl IOO moved, substantially as and for t-he purpose specified.

S. The colnbination of wheel D,l`iaviug pins- I I and circumferential groove H,- shifting bars K K, having plates I I, providedV withlslots t t', and lugs l? I2, substantially as andfor the purpose specified.

9. The combination ofwheelD havin ins.v di? I I and circumferential groove H, shittingbars K K, having plates I I, provided with slots c' t, and lugs I2 I2, the said lugs I2 and groove H limiting the throw of the bars Kin one direction, and suitable buffers secured to said bars K, to limit the throw of same in the opposite directions, substantially as and for the purpose specified.

10. The combination of wheel D, having pins I I and circumferential groove H, shiftingbars K K, having plates I I, provided with slots i t', and lugs I2 Il, the said lugs I2 and groove H limiting the throw of the bars K in one direction, and suitable adjustable buffers secured to said bars K, to regulate and limit the throw of same in the opposite directions, substantially as and for the purpose specified;

11. The combination-of wheel D, having pins I I and circumferential groove H, shiftingbars K K, having plates I I, provided with slots t' t', lugs I2 l, and buffers K, consisting of plate k3 and rubber or iiexible cushion la", substantially as and for the purpose specied.

12. rIhe combination of the pins'I I, ar-

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ranged substantially opposite to each other, and adapted to move around a fixed point, with plates I, having slots 1', there being a time when both of said pins are in said slots when the plates are held stationary, but when said pins are moved in either direction one of same passes out of the slot in one of said plates, while the other passes in and shifts the other of said plates, substantialtxv as and i'or the purpose specified.

13. The combination ot' the pins I I', arranged substantially opposite to each other, and adapted to move around a fixed point, with plates I, having working-slots y, there being a time when both of said pins are in said slots when the plates are held stationary, but when said pins are moved in either direction one of same passes out of the working-slot in one of said plates, while the other passes in and shifts the other ot' said plates,and mechanism, substantially as set forth, to hold one of said plates stationary while the other is being shifted, substantially as and for the purpose specied.

14. The combination of shaft C, worin B2, worm-Wheel B,shaft B, having ascrew-thread, b, on its end, stationary but adjustable nuts F F2, clamped upon the screw-threaded end of shaft B by bolts f f, and traveling nut F, and suitable mechanism actuated, when the said nut F comes in contact with either of said nuts F F2, to automatically stop the rotation of shaft B, substantially as and for the purpose specified.

15. The combination of shaft C, worm B2, worm-Wheel B, shaft B, having a screw-thread, I), on its end, stationary nuts F F, traveling nut F, arranged to slide longitudinally in a frame, D2, shitting-wheel D, and shifting devices actuated upon said Wheel being rotated in either direction, substantially as and for the purpose specified.

16. The shifting-bars K, in combination with the shifting-arms L and clamping-plates Z, having lugs Z2, and secured together by bolts Z', substantially as and for the purpose speciiied.

17. The shifting-arm for a belt-shifter, consisting of a Wrought-iron rod or bar, L, having a east-iron loop riveted to its end, substantially as and for the purpose specified.

18. The combination of brake-Wheel M, a pivoted frame, N, having bearings N', a hral cshoe, M', secured to said frame N by flexible or universal joint frame O, supported on said bearings, and having arins P and O2, weight O", and cani Dt, having projections D5 D". and recess D, substantially as and for the purpose specified.

19. An adjustable shifting-arm for belts, in combination with a shifting-bar arranged to reciprocate in fixed guides, said arm being arranged at right angles to said bar,and an adjustable clamping device to secure said arln to said bar and allow it to be adjusted in the direction of its length, substantially as and for the purpose specitied.

20. An adjustable shifting-arm for belts, in combination with a shifting-bar arranged to reciprocate in ixed guides, said arm being arranged at right angles to said bar, and an adjustable clamping device to secure said arm to said bar and allow it to be adjusted both in the direction of its length and that 'of the shifting-bar, substantially as and for the purpose specified.

In testimony of which invention we hereunto set our hands.

STEPHEN A. MORSE. CHARLES TYSON.

\Vitncsses:

R. M. HUNTER, WILLIAM MCWADE. 

